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A unit of length used to measure nuclear distances, = 10−15 meter. Named for the Italian physicist Enrico Fermi (1901–1954). Now obsolete, replaced by the SI term femtometer (symbol, fm); 1 fermi = 1 femtometer.
Plethron is a measurement used in Ancient times, equal to 100 Greek feet (pous). It was roughly the width of a typical athletic running-track, and was used as the st ..more definition+
In relation to the base unit of [length] => (meters), 1 Fermi (fermi) is equal to 1.0E-15 meters, while 1 Greek Plethron (pleth) = 30.8 meters.| 6449000000 Fermi | to common length units |
|---|---|
| 6449000000 fermi | = 6.449E-6 meters (m) |
| 6449000000 fermi | = 6.449E-9 kilometers (km) |
| 6449000000 fermi | = 0.0006449 centimeters (cm) |
| 6449000000 fermi | = 2.115813648294E-5 feet (ft) |
| 6449000000 fermi | = 0.00025389763779528 inches (in) |
| 6449000000 fermi | = 7.0527121609799E-6 yards (yd) |
| 6449000000 fermi | = 4.0072228187386E-9 miles (mi) |
| 6449000000 fermi | = 6.8164041856041E-22 light years (ly) |
| 6449000000 fermi | = 0.024374176299109 pixels (PX) |
| 6449000000 fermi | = 4.030625E+29 planck length (pl) |